Babbage Era - New Utxo fields inlineDatum, referenceScriptHash in Utxo (GraphQL backend)

[satran004]

There are two new fields added to utxo in Babbage era to support inline datum and script reference. The Utxo class has already been updated with two new fields

private String inlineDatum;
private String referenceScriptHash;

Update GraphQL backend module to include these new fields in the response.

Note: please refer to Blockfrost backend impl change